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package org.openjdk.jmc.greychart.testutil;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Observable;

import org.openjdk.jmc.ui.common.xydata.DataSeries;
import org.openjdk.jmc.ui.common.xydata.ITimestampedData;

/**
 * Simplified version to help add timestamped data to a series. Will keep references to all the data
 * added... Will always return an iterator for all the available data.
 */
public class TimestampDataSeries extends Observable implements DataSeries<ITimestampedData> {
	private final List<ITimestampedData> data = Collections.synchronizedList(new ArrayList<ITimestampedData>());

	@Override
	public Iterator<ITimestampedData> createIterator(long min, long max) {
		List<ITimestampedData> dataCopy = new ArrayList<>();
		synchronized (data) {
			dataCopy.addAll(data);
		}
		return dataCopy.iterator();
	}

	public void addData(ITimestampedData data) {
		synchronized (data) {
			this.data.add(data);
		}
		setChanged();
		notifyObservers();
	}

}
